A police officer escaped unhurt in roadside bomb attack near a check post in the restive Pakistani northwestern city of Peshawar on Saturday, police said.

Police said that the device was detonated through remote control as Deputy Superintendent Police Iftikhar Khan passed on in his official car on the Ring road of Peshawar, capital of North West Frontier Province.

Khan and other police men escaped unhurt in the attack on Afridi Abad locality of the city, police said. Witnesses said that the blast smashed windows of some buildings in the locality.

Khan said he was the target but he was safe. However the blast caused minor damage to the vehicle.

No group claimed responsibility for the attack. Police arrested two persons from the blast site, witnesses said.

Police men are regularly targeted in Peshawar and other parts of the northwest.

On Friday, two suicide bombers blew up their explosives-packed car near a police station in Lower Dir district in the northwest and killed 12 people, including police men.